Fix tests to clean up after themselves

example/dummy/dummy_test.go

@@ -14,13 +14,14 @@ func TestStream(t *testing.T) {
 	numAppendTxs := 200000
 
 	// Start the listener
-	_, err := server.NewServer("tcp://127.0.0.1:46658", NewDummyApplication())
+	server, err := server.NewServer("unix://test.sock", NewDummyApplication())
 	if err != nil {
 		Exit(err.Error())
 	}
+	defer server.Stop()
 
 	// Connect to the socket
-	conn, err := Connect("tcp://127.0.0.1:46658")
+	conn, err := Connect("unix://test.sock")
 	if err != nil {
 		Exit(err.Error())
 	}

example/nil/nil_test.go

@@ -14,13 +14,14 @@ func TestStream(t *testing.T) {
 	numAppendTxs := 200000
 
 	// Start the listener
-	_, err := server.NewServer("tcp://127.0.0.1:46658", NewNilApplication())
+	server, err := server.NewServer("unix://test.sock", NewNilApplication())
 	if err != nil {
 		Exit(err.Error())
 	}
+	defer server.Stop()
 
 	// Connect to the socket
-	conn, err := Connect("tcp://127.0.0.1:46658")
+	conn, err := Connect("unix://test.sock")
 	if err != nil {
 		Exit(err.Error())
 	}